Principal Klutz has invited a special guest to Ella Mentry School. Her name is Miss Aker, and she's going to show A.J. and his friends how to create cool things out of materials like balloons, straws, and even Popsicle sticks! But what happens when they make a robot so smart, it plans to rule the world? Can anyone stop it?!

When Ella Mentry School holds a science fair, Dr. Snow arrives to help A.J. and his friends conduct their experiments.

Alexander's class is going on a sleepover at the Stermont Museum, but something is stealing bright, shiny objects from all over town, including the museum's treasured Ruby Scorpion, and on the night of the visit the young monster hunters finally confront the town's newest monster--a warrior covered entirely by bubble-wrap.

Alexander and his new friend, Rip, are worried that the worms the rain has brought out are really the megaworms that Notebook of Doom describes but they soon discover that the night crawlers are trying to warn them about the monster tunnel fish that are threatening Stermont Elementary.

After budget cuts threaten the art and music programs at Ella Mentry School, as well as some services, groundskeeper Burke finds gold and "gilver" on the playground, causing a modern-day gold rush.

The Bureau of Educational Maintenance (BEM) is after Spencer, and the only place he is safe is within the walls of the New Forest Academy--or so he thinks.

Whether it is a splinter, a stomach ache, or a loose tooth, the children at Bluebell Elementary know to go to Miss P to fix their bumps and bruises.

In the midst of a sudden spring snowstorm, an unknown man armed with a gun walks into an elementary school classroom. Outside the school, the town of Broken Branch watches and waits. Officer Meg Barrett holds the responsibility for the town's children in her hands. Will Thwaite, reluctantly entrusted with the care of his two grandchildren by the daughter who left home years earlier, stands by helplessly and wonders if he has failed his child again....

Meet Carter, Esme, and Arnold, three students accidentally locked together inside an almost deserted school. They are not friends. They scarcely know each other. But In the basement, a mysterious night janitor waits. And outside, moving in the mist, dark shapes shuffle closer.

Sam, Lucy, and Antonio have a new substitute teacher, who happens to be the great-great-grandson of Orson Eerie, the evil scientist whose spirit possesses and infects their elementary school--and the friends are afraid he may be trying to bring Orson back to life.